#chem

i'm struggling on memorising content/rules and stuff for chem. is writing notes an efficient way to study or is there another way. i find that doing past papers right now is too much since i dont remember much of the content from term 1 and 2

Hello, I have a chem depth study on "how to use colourimetry and titration to calculate Keq/Ka" But I'm kinda confused as to what the blank solution is made from (is the just water?). Can anyone please provide an example of a colourimetry experiment and what the blank solution to that would be...